Home / 214,158.53-320,971.24-138,056.40

Finding the Fourth Proportional to 214,158.53, 320,971.24 and 138,056.40

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Solution

The fourth proportional to 214,158.53, 320,971.24 and 138,056.40 is: 206,912.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,158.53 : 320,971.24 = 138,056.40 : x
  2. Step 2: Convert to fraction form
    214,158.53/320,971.24 = 138,056.40/x
  3. Step 3: Cross multiply
    214,158.53x = 320,971.24 × 138,056.40
  4. Step 4: Simplify right side
    214,158.53x = 44,312,133,897.94
  5. Step 5: Solve for x
    x = 44,312,133,897.94/214,158.53
  6. Step 6: Final answer
    x = 206,912.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.